Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
JPL Small-Body Database Browser
Search: [ help ]  
4689 Donn (1980 YB)
Classification: Main-belt Asteroid          SPK-ID: 2004689
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07109561061721935 1.7647e-08  
a 2.28820182169264 5.8501e-09 au
q 2.125520715963968 3.9963e-08 au
i 5.160350287903915 5.2257e-07 deg
node 105.7033228425201 1.3793e-05 deg
peri 32.15047496917772 2.2666e-05 deg
M 166.6980923552637 1.3998e-05 deg
tp 2458615.079337908441
(2019-May-11.57933791)
4.8921e-05 TDB
period 1264.270246739309
3.46
4.8484e-06
1.327e-08
d
yr
n .2847492463960766 1.092e-09 deg/d
Q 2.450882927421312 6.266e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2500  
   data-arc span      20699 days (56.67 yr)  
   first obs. used      1964-02-15  
   last obs. used      2020-10-17  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .46456  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 16:38:56  

Additional Information
 Earth MOID = 1.14122 au 
 Jupiter MOID = 2.55663 au 
 T_jup = 3.592 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.23   n/a E2021B10  
diameter diameter 6.138 km 0.195 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 122.5 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Pravec, P.; Wolf, M.; Sarounova, L. (2016) http://www.asu.cas.cz/~ppravec/neo.htm]
geometric albedo albedo 0.187   0.053 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

4689 Donn (1980 YB)          Discovered 1980-Dec-30 by Bowell, E. at Flagstaff
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1980 YB = 1964 CC = 1978 GN2 = 1988 AR1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Jun-12 12:44 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin